For a single gene search, you can easily retrieve all alleles (or all
transgenic,
all
targeted, all
gene trapped, etc.) by going to the gene detail (ex.
Nrp2) page and clicking on the appropriate
hyperlink in the Alleles and phenotypes row.

On most MGI pages, you can access the Phenotypes, Alleles
and Disease Models Query Form from the Search menu as
shown in the image at right. It is also linked on the mini homepage for Phenotypes
& Mutant Alleles.

Example: Finding targeted, spontaneous, ENU-induced or endonuclease mediated
mutations in Nrp2 that result in a gene knock-out or null allele.

Type Nrp2 in the Gene/Marker text box.

Check the boxes to make selections in the Categories section.
The first box provides options based on allele generation method, the
second - allele attributes and the third allows you to restrict your
results to the alleles generated by a particular institution or project.
See
documentation for more about how MGI defines each of these terms.

Click Search.

Search results are ordered by state, such that
alleles present in live mice appear first and alleles
present in cell lines last, then alphabetically by allele symbol.
Note that the allele properties are displayed in the "Category" column;
use the arrows in the column header(s) to re-sort.

Click on an allele symbol to view details including mutation descriptions,
annotated phenotypes and references for each.